http://pivxscan.io/block/70de717cc999a367e918f1fef6f45c69a3011a5d7e6085d1518a6590cbfd62a2
https://chainz.cryptoid.info/pivx/block.dws?803183.htm
Block no : 803183
what going in PIVX ?
https://pivxscan.io/ is one the wrong chain, they probably missed to update to the current version.
If in doubt, this is always the reference: http://www.presstab.pw/phpexplorer/PIVX/block.php?searchinput=803183
redownloading the blockchain solved this issue, but I never expect there is 2 chain.